From: "Michel Dänzer" <michel@daenzer.net>
To: linux-fbdev@vger.kernel.org
Subject: Re: kdrive vs. xorg rotation on AT91SAM9263 atmel_lcdfb
Date: Tue, 23 Mar 2010 23:02:26 +0000 [thread overview]
Message-ID: <1269385346.16545.288.camel@thor.local> (raw)
In-Reply-To: <68FBE0F3CE97264395875AC1C468F22C276323@mail03.cyberswitching.local>
On Sam, 2010-03-20 at 12:25 -0700, Chris Verges wrote:
> Hi fellow fbdev users,
>
> I'm seeking help with a migration from kdrive to xorg. Under
> kdrive-fbdev, I'm able to rotate the X11 output using xrandr in all four
> orientations: normal, left, right, inverted. However, under
> xf86-video-fbdev, xrandr only reports that it does not support left,
> right, or inverted rotations. Dynamic rotation is critical for this
> application, so I cannot use the "Rotate" option in xorg.conf.
>
> The atmel_lcdfb driver that we're using in the kernel does not support
> hardware rotation, so I believe that a software-based Shadow Buffer is
> required. (Please correct me if I'm wrong on this!) I added in the
> "ShadowFB" option to xorg.conf for the fbdev device, but xrandr still
> only reports normal rotation possible.
>
> I've hit a brick wall in my own research on this, so would appreciate
> any help that the community can offer. Any suggestions?
Support for this simply hasn't been implemented yet in the
xf86-video-fbdev driver.
--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
next prev parent reply other threads:[~2010-03-23 23:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-20 19:25 kdrive vs. xorg rotation on AT91SAM9263 atmel_lcdfb Chris Verges
2010-03-23 23:02 ` Michel Dänzer [this message]
2010-03-24 0:14 ` Chris Verges
2010-03-25 8:57 ` Michel Dänzer
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